Josef keuburg and ignaz neuburg-



UNITED STATEs PATENTOFFIEQ JosEF NEUBURG AND IGNAZ nnnnnneon'ivnwvonn,n. v.

COOKING APPARATUS AND REFIGERATOR.

Specication forming part of Letters Patent No. 59,1141, dated November6, 1866.

To all whom it may vconcern Be it known that we. JOSEF NEUBURG and IGNAZNEUBURG, both ofthe city, county, and State of New York, have invented anew and Improved CookingApparatus; and we do hereby declare that thefollowing is a full, clear and exact description of the same, referencebeing had to the accompanying drawings, making a part of thisspecification, in which- Figure l is a vertical transverse section ofthe apparatus. Fig. 2 is a plan or top View of the same with the coverremoved. I

Similar letters of reference indicate corresponding parts in bothfigures.

This invention is designed not only for cooking or stewing meat andvegetables, but also, when desired, for use as a refrigerator topreserve the same or other like perishable substances from the injuriouseffects of a warm atmosphere; and it consists in a novel construction ofan apparatus whereby the desired object is accomplished.

To enable others to understand the construction and operation of ourinvention, we will proceed to describe it with reference to thedrawings.

The casing or outer portions of the apparatus is composed of twosheet-metal vessels or cases, a and b, which are placed one withinl theother, with a space between them, which is iilled with pasteboard orother suitable nonconducting material, as shown at c in Fig. l. Whenpasteboard is employed it is formed into the shape of cases or boxesclosed at one end, and of a shape corresponding to the inner and 'outermetallic cases, a b. These pasteboard cases are placed one inside theother, and are iitted snugly into the space between the aforesaid innerand outer metallic cases, a b, thus constituting` a non-conducting layeraround the sides and bottom of the apparatus, to prevent thetransmission of heat through the said sides and bottom. It should bementioned that the bottom of the layer of pasteboard just mentioned isprevented from coming quite in contact with the bottom of the outercase, b, by means of small supporting blocks or studs d, so that a smallspace, e, is left between the said pasteboard and the aforesaid bottomof the outer metallic case, b, the object of which will presentlyappear.

Attached by any suitable means to the under surface of the bottom of theouter metallic case, b, at one side thereof and removable therefrom, isa small panor receptacle, j'. The interior of this pan fcommunicateswith the space e by means of a small hole or opening, g, formed in thebottom of the case b, as shown in Fig.

1. The upper ends of the inner and outer mey tallic cases, a b, areconnected together by an annular plate, h, which is somewhat narrowerthan the space between the said cases a b. The inner edge of thisannular plate h is soldered continuously to the adjacent edge of thesaid upper end of the inner case, a, while the outer edge thereof isattached to the upper end of the outer case, b, by soldering atintervals, so that slots or openings lfare left between the outer edgeof the said annular plate and the outer metallic case, b, as shown moreclearly in Fig. 2, the said openings communicating with the space iilledwith pasteboard c, between the inner and outer cases, a b, as just setforth.

The annular plate h is made inclined on its upper surface, with itsouter edge lower than its inner edge, so that an annular gutter isformed just within the upper end of the outer case, b, as shown moreclearly at m in Fig. 1. This outer portion, a b c, may be supported byany desired number of legs k, or by any other suitable means.

A represents the cover of the apparatus, which is made double bymeans ofan internal plate, n, the space between the outer portion .of the saidcover and its inner plate, n, being iilled with pasteboard fr, which isiirst out into the form of rings or annular plates and snugly itted intothe said space, as shown in Fig. 1.

The diameter ofthe inner plate, u, is not quite as great as that of therim of the cover A, so that a narrow opening is left between them, whichcommunicates with. the pasteboard filling r, as shown at s in Fig. l,the edges of the plate n being soldered at intervals to the said rim, sothat it is rmly iixed in place. The cover A is fitted upon the casing ab c with sufficient closeness to prevent the escape of vaporthrough thejoint, and may be attached thereto by a hinge, t, at one side and ahasp,

fa, at the other.

B represents a central vessel, in which the articles to be cooked orpreserved are placed, and which is made of sheet metal. This ce'ntralvessel, B, rests on the bottom of the casing a b o, but is ofconsiderably less diameter than the said casing, so that an annularchaming beingfpacked with the non-conducting pasteboard illing rprevents the outward radiation of heat from the said hot or boilingwater, at the same time that the sheet metal, of which the sides of theinner vessel, B, are formed, permits the heat from the hot water to beradiated freelyr through the said sheetmetal sides into the said innervessel, B, where it slowly cooks or stews the meat or vegetables placedtherein. Thus, for instance, beef maybe steWed in about three hours, andpotatoes in an hour and a half. rI he vapors from the hot water passupward, and a minute portion passes through the openingss into theinterior of the cover A, while the greater part is condensed upon theunder side of the inner plate, n, of the said cover, and runs into thegutter m, and thence, through the openings i, down through thepasteboard lling r of the casing a. b c, into the space e,

(the object of the said space being to prevent the complete saturationofthe lower portion of the pasteboard filling 'r,) from which it passesthrough the opening g into the pan f, from which it may be poured oremptied out when desired. By this means the Waste of heat from theevaporation ofthe 'Water is effectually prevented.

When it is desired to use the apparatus as a refrigerator the annularchamber C is left empty, and the meat or vegetables are placed in thecentral or innermost vessel, B, the cover A being iitted closely in itsplace, as hereinbefore fully explained. The non-conducting nature of theouter casing, a b c, and of the cover A prevent the passage inward ofheat from the atmosphere, so that the contents of the central vessel, B,are kept in a cool condition in the saine manner as an ordinaryrefrigerator. p

What We claimas new, and desire to secure by Letters Patent, is-

The non-conducting double Casin g a b c, hav-v ing an annular gutter, m,openings i, opening g, and pan f, and furnished with the non-conductingcover A, in combination with the central vessel, B, the wholeconstructed and arranged substantially as herein set forth,for thepurpose specified.

JOSEF NEUBURG. IGNAZ NEUBUBG. Witnesses:

A. LECLERC, J. W. CooMBs.

